Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7976996 | Fuel cell system | — | 2011-07-12 |
| 6856047 | Power source apparatus | Takashi Horie, Masashi Isozumi, Yasuhiro Tsubota, Tsunetoshi Ooba, Hideki Kobori +3 more | 2005-02-15 |
| 6424547 | Power supply module utilizing expansion power supply units to increase power supply capacity | Takashi Horie, Masashi Isozumi, Yasuhiro Tsubota, Tsunetoshi Ooba, Hideki Kobori +4 more | 2002-07-23 |